<template>
  <div class="container-login">
    <div class="login-wrap">
      <el-form
        :model="ruleForm"
        status-icon
        :rules="rules"
        ref="ruleForm"
        label-width="100px"
        class="demo-ruleForm"
      >
        <el-form-item label="登录账号" prop="userame">
          <el-input type="text" v-model="ruleForm.pass" autocomplete="off" placeholder="请输入登录账号"></el-input>
        </el-form-item>
        <el-form-item label="登录密码" prop="password">
          <el-input
            type="password"
            v-model="ruleForm.checkPass"
            autocomplete="off"
            placeholder="请输入登录密码"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="submitForm('ruleForm')">立即登录</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    var checkAge = (rule, value, callback) => {
      if (!value) {
        return callback(new Error("年龄不能为空"));
      }
      setTimeout(() => {
        if (!Number.isInteger(value)) {
          callback(new Error("请输入数字值"));
        } else {
          if (value < 18) {
            callback(new Error("必须年满18岁"));
          } else {
            callback();
          }
        }
      }, 1000);
    };
    var validatePass = (rule, value, callback) => {
      if (value === "") {
        callback(new Error("请输入密码"));
      } else {
        if (this.ruleForm.checkPass !== "") {
          this.$refs.ruleForm.validateField("checkPass");
        }
        callback();
      }
    };
    var validatePass2 = (rule, value, callback) => {
      if (value === "") {
        callback(new Error("请再次输入密码"));
      } else if (value !== this.ruleForm.pass) {
        callback(new Error("两次输入密码不一致!"));
      } else {
        callback();
      }
    };
    return {
      ruleForm: {
        pass: "",
        checkPass: "",
        age: ""
      },
      rules: {
        pass: [{ validator: validatePass, trigger: "blur" }],
        checkPass: [{ validator: validatePass2, trigger: "blur" }],
        age: [{ validator: checkAge, trigger: "blur" }]
      }
    };
  },
  methods: {
    submitForm(formName) {
      this.$refs[formName].validate(valid => {
        if (valid) {
          alert("submit!");
        } else {
          console.log("error submit!!");
          return false;
        }
      });
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();
    }
  }
};
</script>

<style scoped lang="less">
.container-login{
    width: 100%;
    height: 100%;
    background:url('../assets/login-bg.jpg');
    background-size: 100% 100%;
    .login-wrap {
        position: absolute;
        width: 498px;
        height: 283px;
        top: 172px;
        left: 0;
        right: 0;
        margin: auto;
    }
}

</style>